Pololu 9V Step-Up Voltage Regulator U3V12F9

The compact (0.32″×0.515″) U3V12F9 switching step-up (or boost) voltage regulator takes an input voltage as low as 2.5 V and efficiently boosts it to 9 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.